Frequency of Hepatitis B and C Co-Infection in Chronic Liver Disease Patients in Calabar, Cross River State, Nigeria. NJPS [Internet]. 20. maj 2021 [citirano 6. april 2026];31(1):043-7. Dostopno na: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1851